Centrifugal liquid-separator.



No. 825,721. PATENTED JULY-10, 1906. W. C. HARTMANN.

A GENTRIFUGAL LIQUID SEPARATOR.

APPLICATION FILED JULY 28, 1904.

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W. G. HARTMANN. GBNTRIFUGAL LIQUID SEPARATOR.

APPLIOATIOH FILED JULY 28, 1904.

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No. 825,721. PATENTED JULY 10, 1906. W. G. HARTMANN.

GENTRIFUGAL LIQUID SEPARATOR.

APPLICATION FILED JULY 28. 1904.

3 SHEETS-SHEET 3.

W-"zzzz eases: Inventor UNITED sirArns PATENT OFFICE.

WILLIAM C. .HARTMANN, OF LANSING, MICHIGAN, ASSIGNOR- TO THE .OMEGASEPARATOR COMPANY, OF LANSING, MICHIGAN, A CORPO- RATION or MICHIGAN.

CENTRIFUGAL LlQUlD-SEPARATOR- Specification of Letters Patent.

Patented July 10, 1906.

ollection filed July as, 1904. semi No. 218,564.

To all whom it may concern.-

Be it known that I, \VILLIAM C. HART- MANN, a citizen of the UnitedStates, residing and having my post-office address at of Michigan, haveinvented new and useful Improvements in Skimming Devices for CentrifugalLiquid-Separators, of which'the 7 fo owing is a specification.

My invention relates to that form. of cen trifugal liquid-sqmratwsinfwhich the liquid to be separated is admins-o at the top and drawn oilat the bottom; and the object of my invention is to produce abowl-filler for that class of separators which shall be rapid andcflicient in its operation and free from clogging by means of cream ordirt. .I attain these purposes by the mechanism shown in theaccompanying drawings, in which- Figure 1 is a vertical section of aseparatorbowl containing my device. Fig. 2 is a vertical section of amodified form of theseparatin -partitions. Fig. 3 is a plan view fromelow of the interior partition D. Figs. 4 and 5 are similar views of thepartitions E and F, respectively. Fig. 6 is a perspective of themilk-admitting tube. Fig. 6 is a plan view of the same from below. Fig.7 is a detail of the means by which the different separating-partitionsare fastened together. Fig. 8 is a cross-section of Fig. 1 on the line XX. Fig. 9 is a detail view, in plan and edge view, of themilk-regulating device shown in vertical sect-ion in Fig. 1. Fig. 10

distributing diaphragm.

In the drawings, A represents a separatorbowl, which may be of anyordinary type, adapted to receive the milk at the upper end anddischarge it at the lower. I prefer, however, to use the form of bowland false bottom shown in Letters Patent No. 621,306, dated March 14,1899, top. L. Kneeland and William C. Hartmann. A series of separatingfrusto-conical partitions D and F, as

shown in Figs. 1 and 2, are arranged to fitclosely inside of the bowl.On the outside of the partition F are two or more milk-stead ing vanesof the form shown in Fig. 1, t e lower extremity being preferably cutoff at an an le. The outer edge of the vane exactly ts the interior ofthe bowl. To the Lansing, in the county of Ingham and State' is aperspective view of the triangular milk-- exterior surface of each ofthe partitions are also attached two or more vanes d of such a shape asto exactly fit the interior of the partition next outside of them,coming to an end a short distance from the bottom, as shown at d. i Thepartitions may be as numerous as desired, both being employed in Fi 2and only one of them, D, in Fi 1. Insi e of the interior partition isplaced a milkadmission tube C, to which are attached two or more vanesg', as shown in Fig. 9, three being shown in the drawings and beingpreferred by me. The interior partition D is secured in its place andcompelled to revolve with the bowl by a pin (shown in Fig. 1) which fitsinto a notch in the top edge of the partition. The exterior partitionsare secured to those exterior by pins which fit into locking-notches, as

shown in Fig. 8,the purpose of this construction being so that theentire system of partitions may be withdrawn together from the bowl whenthe bottom B is removed. The milk-admission tube C is compelled torevolve with the bowl b means of thepins a, fitting into a hole in t etop of the bowl, as shown in Fi 1.

A triangu ar milk-distributing diaphragm H is inserted in themilk-admission tube in its lower extremity, the purpose of which Will bemore fully explained hereinafter. On the lower extremity of themilk-admission tube is secured a regulating device for insuring an evenregular supply of milk to the bowl. This, as shown in Figs. 1 and 9,consists of an upper disk r, which is adapted to slip on the lower endof the milk-tube until it Openings K allow of the passage of the creamthat collects about the central tube. A series of holes 7' are alsodrilled in this disk, serving as vents. The lower disk is fitted with ascrew, so as to screw on the lower end of the milktube C, as shown inFig. 1, but is kept from coming into close contact with the disk '21 bmeans of adjustingscrews Z. By this a justment of the distance betweenthe two disks, the supply of milk to the bowl is regulated. The otherfeatures of this device will be better explained in connection with theoperation of the mechanism.

I prefer to make each of the interior partitions a little longer thanthe partition exterior to it, as shown in Fig. 2; but this is notessential to my invention. I'also'prefer to make each interior partitionof a somewhat higher degree of taper than the partition interior to 1t,so that the space between any two successive partitions will be greaterat the bottom than it is at the top, as shown in'Fig. 2. By this meansthe descending current of cream is more completely separated from theascending current of skimmed milk. I also find it advantageous to extendthe vanes g, as shown at w in EigsI 1 and "6, so as to cross the spacebetween the disks 1" and s or the opening of the tubes f.

In using'my device the milk is admitted to the separator-bowl throughthe tube I, passing downward inthe direction indic'atedby the arrows. Itpasses downward to the bottom of the tube 0, when it is given the motionof the bowl by the distributing-diaphra m H and escapes through theopenings t an the space between the disks r and s or the tubes f intothe interior of the partition D and passes over the u per edge of thatpartition until the bowl is filled with milk. The milk in the bowl iscompelled to revolve with I I the bowl and remain perfectly steady bythe vanes g, d, and 0. As soon as this condition is reached theseparation of thecream from the milk begins. I

As soon as the milk escapes from the milkadmission tube the skim-milk,being heavier than the cream, begins to separate fromit under theinfluence of the centrifugal force and goes to the outer part of theinner partition D and forms an ascending current along the interior Wallof the partition, passing to the top of the partition and escapin throuh the o enings 9 into the interior of t 1e bowl. At tr e same time thecurrent of cream displaced by the heavier milk collects in-a ring aroundthe outside of the tube 0 and passes down through the openings K and theopening it in the partition D, into the partition D, into thecream-pool-at the bottom of the bowl,

r from which it esca es through the slotted cream-screw 'v and t e tubeJ into the creamforced inward and downward along the outside ofthe'partition D until it escapes through the openingh in this partitioninto the ereampool. At the same time an ascending current of milk isformed along the inner wall of the artition surrounding the partition D,which comes up to the top and escapes again intothe interior of thebowl. Again passing downward it is caught by the partition F,

when the process is again repeated. As stated in describing theconstruction, as many of these partitions as "it is deemed proper may beemployed, each of them removing an additional portion of cream from themilk, which all passes downward into the cream-pool and escapes throughthe creamtube J. The skim-milk from which the last vestiges of creamhave been removed passes down along the interior wall of the bowl in thedirection indicated by the. arrows to the bottom of the bowlffroin whichit escapes in the manner described in Letters Patent No. 621,306, datedMarch 14,"1899, to O. L. Kneeland and William C. Hartmann, alreadyreferred to. Y1 What claim is v 1. In amilkadmitting device forcentrifugal separators, in combination, a milktube, a milk-regulatingdisk removably attached thereto and having openings therethrough, asecond regulating-disk adapted to be removably attached to saidmilk-tube facing said first disk and having holes'adapted to receive thecream-tubes of the first disk with means for regulating the distance ofsaid disks apart.

2. In aniilk-a'dmitting device for centrifugal separators, in.combination, amilk-tubaa? milk-regulating disk"re1no'vably attached'thereto' and having openings-therethrough, a

second regulating-disk adapted to be removably attached to saidmilk-tube facing said first disk and having holes adapted to receive thecream tubes of the first disk with means for regulating the distance ofsaid disks apart, and a milk-distributing diaphragm in the lower end ofsaid milktube.

4. In a '1nilkadmitting device for centrifugal separators incombination, a h'ii'lk-tube, a milk-regulating disk removably attachedthereto and having 0 )enings tlierethrough, a second regulating-disadapted to be removably attached to said milk-tube facing said firstdisk and having holes adapted to receive the cream-tubes of the firstdisk with means forregulating the distance of saiddisks apart, amilk-distributing diaphra m in the lower end of said milk tubep andvertical milk- .steadying vanes attached to said inilk tube.

lower end of the milk-tube, and means for regulating the distance ofsaid two parts apart.

6. In a niilk-admittin gal separators, a milk-tu i i device forcentrifue, a triangular milkdistributing diaphragm removably insertedinthe lower end thereof, and a two-part regulating device removablysupported on the lower end of the milk-tube, and ,means for regulatingthe distance of said two parts apart, said milk-tube being provided withexterior milk-steadying vanes. v

7. In a milk-admitting device for centrifugal separators, a milk-tube, atriangular milledistributing diaphragm removably inserted teriormilk-steadying vanes, said vanes being provided with openings at theirupper ends.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM C. HARTMAN N Witnesses:

C. C. WOOD, HARRY A. SILSBEE.

